﻿/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

using System;
using System.Collections.Generic;
using System.Text;

using System.Threading;

namespace Hubble.Framework.Threading
{
    public class HBMonitor
    {
        public static bool TryEnter(object obj, int millisecondsTimeout)
        {
            DateTime start = DateTime.Now;

            while (true)
            {
                if (!Monitor.TryEnter(obj, millisecondsTimeout))
                {
                    TimeSpan span = DateTime.Now - start;

                    if (span.TotalMilliseconds >= millisecondsTimeout)
                    {
                        return false;
                    }
                    else
                    {
                        Thread.Sleep(10);
                    }
                }
                else
                {
                    return true;
                }
            }
        }

        public static void Enter(object obj)
        {
            Monitor.TryEnter(obj);
        }

        public static void Exit(object obj)
        {
            Monitor.Exit(obj);
        }
    }
}
